BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Ameritas Investment Partners, Inc.'s Holding History (CIK: 0001055980)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,336 Value ($000) $235 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 6,226 Value ($000) $872 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 6,187 Value ($000) $777 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 6,187 Value ($000) $847 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 6,056 Value ($000) $926 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 5,915 Value ($000) $1,147 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 5,760 Value ($000) $1,335 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 5,813 Value ($000) $1,253 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 5,813 Value ($000) $1,504 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 5,681 Value ($000) $1,460 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 4,879 Value ($000) $1,390 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 4,833 Value ($000) $1,344 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 4,799 Value ($000) $1,401 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 5,042 Value ($000) $1,346 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 5,042 Value ($000) $1,028 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 5,135 Value ($000) $1,081 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 5,135 Value ($000) $1,232 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 5,222 Value ($000) $1,478 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 5,254 Value ($000) $1,819 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 5,305 Value ($000) $1,484 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 5,436 Value ($000) $1,331 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 5,459 Value ($000) $1,549 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 5,862 Value ($000) $1,568 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 6,540 Value ($000) $2,069 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 6,607 Value ($000) $1,960 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 6,579 Value ($000) $1,532 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 7,040 Value ($000) $1,646 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 14,013 Value ($000) $3,311 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 14,388 Value ($000) $4,328 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 14,029 Value ($000) $4,955 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 14,703 Value ($000) $4,266 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 15,046 Value ($000) $4,120 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 16,716 Value ($000) $5,863 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 18,182 Value ($000) $5,722 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 18,297 Value ($000) $4,964 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 18,662 Value ($000) $5,101 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 19,661 Value ($000) $5,575 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 17,483 Value ($000) $5,471 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 21,092 Value ($000) $5,099 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 20,559 Value ($000) $5,351 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 20,290 Value ($000) $6,215 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 20,573 Value ($000) $6,002 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 20,410 Value ($000) $8,244 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 20,018 Value ($000) $8,451 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 20,930 Value ($000) $7,104 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 16,854 Value ($000) $5,575 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 17,353 Value ($000) $5,471 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 17,746 Value ($000) $5,427 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 15,933 Value ($000) $4,456 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 11,447 Value ($000) $2,755 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 5,600 Value ($000) $1,205,120 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,336	$235	$163.37	$138.00 - $185.17
Q3 2025	6,226	$872	$135.17	$121.05 - $150.28
Q2 2025	6,187	$777	$124.60	$110.04 - $137.32
Q1 2025	6,187	$847	$142.96	$128.51 - $157.09
Q4 2024	6,056	$926	$168.67	$145.07 - $195.00
Q3 2024	5,915	$1,147	$209.21	$188.78 - $238.00
Q2 2024	5,760	$1,335	$217.32	$189.44 - $237.54
Q1 2024	5,813	$1,253	$234.20	$211.02 - $268.30
Q4 2023	5,813	$1,504	$245.62	$220.86 - $269.43
Q3 2023	5,681	$1,460	$267.47	$251.85 - $287.60
Q2 2023	4,879	$1,390	$297.86	$273.39 - $319.76
Q1 2023	4,833	$1,344	$276.70	$254.80 - $295.90
Q4 2022	4,799	$1,401	$282.44	$250.31 - $311.88
Q3 2022	5,042	$1,346	$212.38	$193.65 - $283.44
Q2 2022	5,042	$1,028	$204.43	$187.16 - $225.50
Q1 2022	5,135	$1,081	$217.46	$192.67 - $249.00
Q4 2021	5,135	$1,232	$257.12	$221.72 - $290.76
Q3 2021	5,222	$1,478	$327.75	$282.64 - $372.12
Q2 2021	5,254	$1,819	$302.94	$257.03 - $468.55
Q1 2021	5,305	$1,484	$269.69	$238.40 - $296.38
Q4 2020	5,436	$1,331	$259.08	$223.25 - $363.92
Q3 2020	5,459	$1,549	$278.91	$261.87 - $312.00
Q2 2020	5,862	$1,568	$300.59	$257.60 - $350.24
Q1 2020	6,540	$2,069	$303.47	$262.25 - $374.99
Q4 2019	6,607	$1,960	$277.46	$219.70 - $318.00
Q3 2019	6,579	$1,532	$232.85	$215.78 - $246.99
Q2 2019	7,040	$1,646	$230.90	$219.20 - $245.35
Q1 2019	14,013	$3,311	$314.89	$216.12 - $344.00
Q4 2018	14,388	$4,328	$319.14	$278.46 - $358.41
Q3 2018	14,029	$4,955	$344.30	$288.13 - $388.67
Q2 2018	14,703	$4,266	$281.15	$249.17 - $310.91
Q1 2018	15,046	$4,120	$310.41	$259.76 - $370.57
Q4 2017	16,716	$5,863	$320.80	$301.81 - $348.84
Q3 2017	18,182	$5,722	$296.11	$269.50 - $330.00
Q2 2017	18,297	$4,964	$264.42	$244.28 - $291.90
Q1 2017	18,662	$5,101	$282.75	$260.50 - $301.42
Q4 2016	19,661	$5,575	$296.43	$268.00 - $329.83
Q3 2016	17,483	$5,471	$296.18	$240.07 - $333.65
Q2 2016	21,092	$5,099	$263.54	$223.02 - $292.69
Q1 2016	20,559	$5,351	$264.15	$242.07 - $301.02
Q4 2015	20,290	$6,215	$287.35	$254.00 - $311.65
Q3 2015	20,573	$6,002	$330.23	$265.00 - $412.24
Q2 2015	20,410	$8,244	$401.33	$368.88 - $432.88
Q1 2015	20,018	$8,451	$394.14	$334.40 - $480.18
Q4 2014	20,930	$7,104	$323.51	$290.85 - $361.93
Q3 2014	16,854	$5,575	$329.72	$298.31 - $349.00
Q2 2014	17,353	$5,471	$300.97	$272.02 - $322.25
Q1 2014	17,746	$5,427	$317.43	$270.62 - $358.89
Q4 2013	15,933	$4,456	$258.65	$221.07 - $298.82
Q3 2013	11,447	$2,755	$223.81	$203.55 - $248.95
Q2 2013	5,600	$1,205,120	$213.68	$191.80 - $242.64